Lifting-jack.



H. WHITING.

UFTING JACK.

APPLICATION FILED JAN. 11, I812.

Patented Nov. 21, 1916.

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; nvvgy 6 I nonarro WRITING, or new roan, n. Y.

LIFTING-J'ACK.

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Application filed January 11, 1912.

To all whom it may concern:

Be it known that I, Honarro WHITING, a citizen of the United States, anda resident of New York city, in the county of New York and State of NewYork, have invented certain new and useful Improvements inLifting-Jacks, of which the following is a specification.

' This invention relates to a new and i1nproved lifting jack forreplacing cars or the like on the track, or for moving an object afterit has been lifted from one position to another.

An object of this invention is to provide a lifting jack which will becapable of shifting an object such as a car after the same has beenraised to the desired level from one point to another. This object isobtained by. having a supplementary rest or head, located offset fromthe main head on the riser or standard, on an arm connected to move withthe riser or standard both in a vertical direction and transversely in ahorizontal direction. The mechanism for raising the standard is soarranged that the standard, which in this case is shown to be in theform of a screw, can first advance vertically without rotation, so as tolift the object, on the supplementary rest or head, to the desiredlevel, and then'can be connected so as to rotate, without furtherraising, so as to swing the supplementary head and the object carriedthereby, from its initial position to the position desired.

In the embodiment used to illustrate this invention, the operatingmechanism is shown to be in the form of a worm which rotates a wormwheel having a screw threaded engagement with theriser or standard, soas to shift the same either upwardly or clownwardly as desired. Lockingor clutching means is provided for. alternativelysecuring the riser orstandard either to the frame or casing of the jack or to the worm wheel,so as, in the former case, to shift the standard relative to the wormwheel, and in the latter case, to rotate the standard with the wormwheel.

The mechanism for swinging the object raised can'be readily detached sothat they 'jack can act with the function of nary lifting jack.

These and further features together with the construction andcombination of parts will be more fullv described hereinafter, andparticularly set'forth in the claims.

Specification of Letters Patent.

the ordi Patented Nov. $1, 1916.

Serial no. 670,544.

Reference may be had to the accompanying drawing in which like referencecharacters denote corresponding parts in the several views, and inwhich:

Figure l is vertical section; Fig. 2 is a horizontal sectional view withthe cover plate removed showing the clutching or locking means foralternativelv connecting the riser or standard to the frame of the jackor to the worm wheel; Fig. 3 is a horizontal section on the line 3-8 ofFig. 1; Fig. 42 is horizontal section on the line 4--lof Fig. 1; Fig. 5is a horizontal section through the auxiliary supporting ring showing amodified form thereof; Fig. 6 is a detail view of the cover plate; Fig.7 is a fragmen tary vertical section of the form shown in Fig. 5.

Referring more particularly to the separate parts of this invention asembodied in the form shown in the drawings; 1 indicates the frame orstationary casing of the jack which is provided with a somewhat centrally located opening or bore 2, extending vertically of the same. Theupper portion of the casing is hollowed out to form an inclosedcompartment 3, in which a portion of the actuating mechanism is located.This actuating mechanism includes a worm wheel l, which may be supportedby resting on a roller bearing 5, on the bottom of the compartment 3, inthe casing 1. The worm wheel has a central opening located in alinementwith the bore or opening 2, and through which extends a riser orstandard 6, which is preferably in the form of a screw having screwthreaded engagement with the worm wheel 4, so that as the worm wheelrotates relative to the riser or standard 6, said riser will be fed inone direction or the other according to the direction of rotation of theworm wheel 4. This may be rotated in one direction or the other by aworm 7, which may be operated by crank 8.

The standard or riser 6, may be provided with a head 9, which may besquared so as to swing therewith, when it is rotated, -an arm 10 whichis secured to the head 9 by having an angular socket 11. extremity ofthe arm 10 there is provided a supplementary rest or head 12, which maybe rotatably mounted on the arm 10, as by having a stub shaft 13,engaging a cylindrical socket in the arm 10. In order to increase theease of relative movement between the supplementary head 12 and the arm10,

Adjacent the outer there may also be provided balls or rollers 14between the head and the arm.

If the head 12 is considerably off-set from the head 9, it may bedesirable to provide a supplementary support which will transmit theload supported by the head 10 to the frame or casing 1. For this purposethere is pivotally connected to a pin 14, located on the arm 10, beneaththe rest or head 12,

a thrust link 15, which may be detachably and pivotally connected to aring 16 by a pin 17, which engages alined openings in the link 15 andflanges 18, on the ring 16. The ring 16 may be rotatably mounted so asto revolve with the swinging movement of the arm 10, on a main ring 19,which encircles the shaft of the frame 1. The connection between thering 16 and the ring 19 may be as shown in Fig. 1 wherein it will beseen that the ring 16 is set in an annular groove in the ring 19, andheld out of contact by means of roller bearings 20. In the form shown inFig. 1 the ring 19 is provided with rollers 21 and 22, so located that,in operation of raising or lowering the riser or standard, they willreadily engage the sides of the frame 1 and lessen the friction of thesupplementary supporting means therewith. In order, however, that whenthe load settles on this supplementary supporting means, it may act as apositive connection between the arm 10, and the frame 1 there areprovided jabbing points or edges 23 and 24, which are so located thatwhen the thrust is from the arm 10 to the rings on the frame 1, thesepoints or edges will bite into the frame or casing 1. It will be notedthat the rollers 21 and 22 and the jabbing points 23 and 24, arestaggered relative to each other so that the ring 19 will have differentcorresponding portions in engagement with the casing 1, when it iseither rising or coming down, on opposite sides of the casing. In orderto increase the efficiency of the lowering action, there may be locateda bumper or cushion 25 of any suitable yieldable material such as rubberbetween the link 15 and the ring 19. This bumper will act as a springpermitting a certain amount of lowering movement of the arm 10 and thelink 15 before the ring 19 is pushed downward.

In order that the off-setting mechanism can be readily detached from thejack, so that the latter can be used as an ordinary lifting jack, thering 16 may be in the form of a split ring comprising sections 26 and27, hinged together at 28, and secured together at their free ends bythe pin 17 passing through the openings in the flanges 18.

WVhen it is desired to raise the riser or standard to any given point,it is preferably held against rotation by being provided with alongitudinal groove or slot 29 in which engages a tongue 30 on a lock orclutch 31, which is shown in the form of a disk having a plurality ofteeth 32 and 33, adapted to engage alternatively in sockets or betweencorresponding teeth on a fixed member 34 and shifter is shown in theform of a ring encircling the casing 1, and pivotally connected theretoat 38, and also provided with a handle 39 whereby it may be manipulated.

It will be seen that, inasmuch as the pins 36 project through slots 39in the casing 1, and also in the groove 35, that by a movement of thisshifter the lock or clutch 31 can be shifted so as to either lock theriser or standard 6 against rotary movement, or lock it to rotate withthe worm wheel 4. The shifter 37 can be secured in either of thesepositions of adjustment by a spring pressed latch 40 engaging insuitably located notches in the side of the casing 1.

In the form shown in Figs. 5 and 7, a

modified type of ring is shown for support-V ing the outer end of thearm and is indi cated by the numeral al. This ring is pro vided on oneside with pockets 42, having their deepest portion j at their upper end,and their shallowest portion at their lower end. At the opposite side ofring, there are provided pockets 43 similar to the pockets 12 with theexception that they are arranged ust opposite with respect to thepockets 42, that is to say, they have their deepest portion at thebottom, and their shallowest portion at the top. In these pockets 4:2and 43 there are located balls 14: which are adapted to bite into theouter surfaces of the casing 1,'when the load is placed on thesupplementary rest or head, and are adapt with which the jacks are inengagement,

relative to the track. In the operationof each individual jack, theclutch or lock is thrown so as to secure the riser or standard againstrotary movement relative to the easing 1, so that it will be free tomove relative to the worm wheel by turningthe crank.

The riser will be fed upwardly until the 1 weight, such as a car,resting on the supplementary head has been raised the desired degree,then the riser can be connected so as to rotate with the worm wheel and,inasmuch as it rotates with the worm wheel this wheel will no longerfeed it in a vertical direction, but will swing the arm connected withthe riser either to the right or to the left'according to the directionby rotation of the crank and the worm. It will be seen that it is notnecessary to rotate the worm in the same direction as is necessary toraise the jack, but it can be rotated likewise in the opposite directionwithout danger of lowering the riser and the load supported on thesupplementary rest. The load which may be a car will thus be swung thedesired degree, which, if desired may be through the complete arc of acircle. The eccentric thrust of the load may be carried to the casingadjacent the base thereof by the supplementary supporting means, whichis permitted to rotate without friction in either form or modification.

While I have shown two embodiments of my invention, I do not wish to belimited to the specific details thereof, but desire to be protected invarious changes, alterations and modifications which may come within thescope of the appended claims.

Having thus described my invention what I claim is:

1. The combination with a casing, of a standard mounted for verticalmovement in said casing, a head on said standard for sup-v porting aload and a unitary means for alternatively advancing said standard orrotating the same in sz'zfu. Y

2. The combination with a casing, of a standard mounted for verticalmovement in said casing, a head eccentrically located with respect tothe axis of said standard and arranged to move with said standard bothvertically as when said standard advances and horizontally as when saidstandard rotates, and a unitary means for alternatively advancing saidstandard or rotating said standard in situ.

3. The combination-with a casing, of a riser movably mounted in saidcasing, actuating means for said riser, and means for alternativelyfixing said riser against rotation and fixing said riser to a part ofsaid actuating means for rotation therewith.

4. The combination with a casing, of a riser movably mounted in saidcasing, actuating means for said riser, and means for alternativelyfixing said riser against r0- tation and fixing said riser to a part ofsaid actuating means for rotation therewith, and a head off-set out ofalinement with said riser movable through the arc of a circle with therotation of said riser and movable vertically with the longitudinalmovement of said riser.

5. The combination with a casing, of a risermounted insaid casing, aworm wheel for operating said riser, a worm for actuating said wormwheel and locking means for alternatively fixing said riser for rotationwith said worm or fixing said riser against rotation with said worm.

6. The combination with a casing, of a riser mounted in said casing,a'worm Wheel for operating said riser, a worm for actuat ing said wormwheel, and locking means for alternatively locking said riser to saidworm or to said casing, and means for securing said locking means in anyposition of ad justment.

7. The combination with a casing, a screw threaded member, the standardhaving a threaded engagement with said member, and a common meansenabling either an unprogressive rotary movement of said standard or aprogressive rectilineal movement of said standard.

8. The combination with a casing, of a riser, means for raising androtating said riser relative to said casing, and a loadcarrying headsupported upon said riser independently of said means, said head beingsecured for rotatory movement with and located out of vertical alinementwith said riser so that a rotary movement of said riser will swing saidhead through the arc of a circle with the axis of the riser as a center.

9. The combination with a casing, of a riser, a revolubly mounted memberhaving a threaded engagement to said riser, a single means foralternately rendering said screw revoluble relative to said revolublymounted member or rigid relative thereto, a head for supporting a loadsecured for rotatory move ment with and located out of verticalalinement with said riser so that a rotary movement of said riser willswing said head through the arc of a circle having the axis of saidriser as a center, and a supplementary support for transferring the loadon said head to said casing.

10. The combination with a casing, of a riser, means for raising saidriser, an arm connected to said riser, a head on said arm, and asupplementary support extending from said arm to said casing comprisinga link connected to said arm, and a ring detachably connected to saidlink and encircling said casing so as to be rotatable and movable bodilyrelative thereto.

11. The combination with a casing, of a riser, means for raising saidriser, an arm connected to said riser, a head on said arm and asupplementary support extending from said arm to said casing comprisinga link connected to said arm and a ring connected to said link andencircling said casing, said ring having gripping and antifrict-ionmeans engaging said casin 12. The combination with a casing, of a rotarymember supportedby said casing and having a screw-threaded openingtherein, a screw engaging said opening, a head connected to said screw,a member fixed to said casing, and locking means connected to said screwshiftable to fixedly engage alternatively either of said members todetermine the character of movement of said screw.

13. The combination with a casing, of a rotatable riser, a load-carryinghead for said riser eccentrically located with respect to the axis ofrotation of said riser, said riser being movable to raise said head, andmeans controllable independently of said load-carrying head for rotatingsaid riser in situ to swing said head through a fiat arc while saidriser remains at the same level.

14. The combination with a casing, of a worm wheel supported by saidcasing and having a screw-threaded opening therein, a screw engagingsaid opening so as to be moved longitudinally by a rotary movement ofsaid worm wheel, a head connected to said screw and located out of axialalinement therewith but connected to rotate therewith so as to swingthrough the arc of a circle when said screw rotates, said screw having aslot therein, and a locking clutch having a tongue engaging in saidslot, and being movable to secure said screw either against rotarymovement with said worm wheel or for rotary movement with said wormwheel, said casing and said worm wheel having means to enable thelocking of said clutch therewith.

Copies of this patent may be obtained for 15. The combination with acasing of a rotary member supported by said casing and having a screwthreaded opening therein, a screw engaging said opening, a headconnected to said screw, a member fixed to said casing, and lockingmeans connected to said screw shiftable to fixedly engage alternativelyeither of saidmembers to determine the character of movement of saidscrew, and means for rotating said first mentioned member. V

16. The combination with a casing, of a riser, an actuating member, anda single locking mechanism alternatively connecting said risernon-rotatably to said casing or said member so as to afford arelative'rota tion between said riser and said member or said riser andsaid casing.

17. The combination withacasing, of a standard mounted in said casing, ahandle for driving said standard, a gearing operated by said handle foreffecting an unprogressive rotary movement of said standard at a slowerspeed than said handle and locking means for enabling said handle toei'fect a rectilineal movement of said standard;

Signed at New York city, in the county of New York and State ofNew York,this 10th day of January, A. D. 1912.

HORATIO 'WHITING,

Witnesses PAUL ZIRoN,

F. D. SWEET.

five cents each, by addressing the Commissioner of Patents. Washington,D. 0."

